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Finding the Fourth Proportional to 199,008.69, 298,512.36 and 80,679.75

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Solution

The fourth proportional to 199,008.69, 298,512.36 and 80,679.75 is: 121,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,008.69 : 298,512.36 = 80,679.75 : x
  2. Step 2: Convert to fraction form
    199,008.69/298,512.36 = 80,679.75/x
  3. Step 3: Cross multiply
    199,008.69x = 298,512.36 × 80,679.75
  4. Step 4: Simplify right side
    199,008.69x = 24,083,902,576.71
  5. Step 5: Solve for x
    x = 24,083,902,576.71/199,008.69
  6. Step 6: Final answer
    x = 121,019.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.